OAKLAND ALAMEDA
ACCESS PROJECT
CONSTRUCTION & PROJECT INFORMATION
Providing Access and Connections
The Oakland Alameda
Access Project will
bring improved safety,
bike/pedestrian
improvements and
better roadway designs
to reduce the impact
of freeway traffic on
surrounding communities
in downtown Oakland
including Chinatown and
the City of Alameda.
Currently, motorists
traveling between I-880,
I-980, and the Webster
and Posey Tubes must
navigate congested
city streets, leading to
bottlenecks, delays,
and vehicle-pedestrian
conflicts.
ATTACHMENT B
PROJECT BENEFITS
Î Connectivity: Improves travel connection between Alameda & I-880 regional travel, and between Alameda & Downtown Oakland (bike, car, pedestrians);
Î Reduced Traffic:
Eases traffic congestion and cut-through traffic
on neighborhood streets, and improved connection to I-880/ regional travel;
Î Safety: Improves safety in communities heavily impacted by cut-through traffic including in Chinatown, where more than 60
percent of Oakland’s severe and fatal accidents occur;
Î Bike & Pedestrians: Provides a new facility in Webster Tube &
improve access in Posey Tube to better connect Oakland & Alameda; Safety & accessibility improvements at intersections, added sidewalks and bike facilities in Oakland & Alameda; Î Climate Equity: Reduces emissions in equity community with air
pollution/ high particulate matter exposure.
Rendering: Webster Street at 6th Street
Î 6th Street made continuous between
Webster & Oak streets
Î Bike lanes separated from vehicle traffic
& Pedestrian Safety Features
Î Removal of northbound I-880 off-ramp
to reduce regional traffic on local streets
MAJOR ROADWAY IMPROVEMENTS IN OAKLAND
1 2
3 4
5 6
7 8
Realign WB I-980
Jackson St
off-ramp
and reconstruct 5th
St. Improved 5th St
provides direct access
to SB I-880
Construct right-turn
from Posey
Tube
onto Horseshoe to NB
Jackson St on-ramp
Mariner Square Loop
(0.3 miles)
Widen
NB I-880 Oak
off-ramp, remove N
B
I-880 Broadway off-
ramp, reconstruct
6th St for
multi-modal
access (Oak St to
Washington St)
Restripe
7th St and
improve intersections
Restripe
Madison for
2-way travel between
4th to 6th St
Restripe Jackson
for 1-way between
5th St to 6th St
Restripe Oak St for
multimodal access
(2-way cycle track
from 3rd St to 9th St)
Reconfigure
intersections at
Broadway and 6th
and 5th St
Rendering of the reconstructed Posey Tube exit
ATTACHMENT B
BIKE/PEDESTRIAN SAFETY AND CONNECTIVITY IMPROVEMENTS
PROPOSED BICYCLE
FACILITIES - OAKLAND
A
B
C
D
E
Class I bike/ped path
connecting 6th Street to
the Posey Tube Portal, and
4th Street to the Webster
Tube Portal (0.5 miles)
Class II bike lanes on
Madison Street and 5th
Street (0.4 miles)
Class III bike lanes
allowing bicycles to share
the road on 4th street,
connect to proposed
Class I and II bike network
Class IV two-way cycle
tracks on 6th Street
between Oak Street and
Washington Street, and
on Oak Street between
3rd Street and 9th Street
(0.8 miles)
New sidewalk (0.7 miles)
sidewalk connections.
A
B
C
D
E
Widen and open
walkway through
Webster Tub e and
along Webster Street
connecting to Mariner
Square Loop (0.8 miles)
New Class II bike lane
on Mariner Square
Loop (0.3 miles)
Add crosswalks to
connect ped/bike paths
New Class I bike path:
Realign and widen path
to 8 feet (0.3 miles)
Sidewalk extension on
Mariner Square Loop
and Mariner Square
Drive (0.3 miles)
NEW BIKE & PEDESTRIAN
IMPROVEMENTS - ALAMEDA
ATTACHMENT B
TRAFFIC: DETOURS & LIMITED TUBE CLOSURES
LIMITED FULL TUBE CLOSURES
Webster Tube:
Î Nighttime closures only
Î Approximately 20-25 nighttime closures*
Posey Tube:
Î 8 full weekend closures*
Î Approximately 20-25 nighttime closures*
LANE CLOSURES: TUBES
Webster Tube:
Î 1 lane closure for 6 months*
Posey Tube:
Î 1 lane closure for 12-18 months**
Note: At no time will both the Posey and Webster Tubes be closed simultaneously. *The number of lane and tube closure days are subject to change based on the awarded contractor’s approved schedule and staging plans.
**The project team is pursuing a strategy to reduce closure time to 12 months.
ATTACHMENT B
Alameda CTC (Prior to construction starting)
1111 Broadway, Suite 800
Oakland, CA 94607
[email protected]
Caltrans (Once construction starts)
Caltrans District 4
PO Box 23660, Oakland, CA 94623
[email protected]
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TIMELINE
Environmental Approval
and Final Design
Construction
Contract Bidding
and Award
Construction
Start
Construction
Completion
Construction timeline may change depending on baseline schedule of selected contractor. Caltrans will lead public outreach for construction timeline updates, activities and other critical details once the contractor is selected. Updates can be followed at OaklandAlamedaAccessProject.com Open House
Information
Events
CONSTRUCTION COMMUNICATION
During constrcution, Caltrans will implement a communication plan to provide updates to all stakeholders including business associations, improvement areas, and neighborhood groups, which will include:
STAY INFORMED & CONTACT US
Spring
2025
Summer
2025
Fall
2025
Spring
2029
Î Brochures and Mailers (available in English,
Spanish, Simplified Chinese, and Vietnamese)
Î Commercial traffic radio
Î Fixed and portable changeable message signs
Î Ground mounted construction signage
Î Online mapping (Google / Apple Maps,
QuickMaps and 511)
Î Press releases & media alerts
Î Updates via email
Î Project website and social media
Î Public meetings
Î Telephone hotline
As construction approaches, Caltrans will provide details on the hotline, public meetings, and more. *Public communication began at the start of project development and will continue throughout construction
ONGOING PUBLIC COMMUNICATION
Fall 2021 - Fall 2024
ATTACHMENT B